Heating apparatus



April '10,51928..y

w. D. sTRATToN HEATING APARATUS Filed sept. 23, y192'? 5 sheets-sheet 41 WITNESS: m" ATTORNEY April 1o, 192s. y

' 1,665,992 WND. sTRATToN lHEMING APPARATUSI Filed sept. 23, 1927 s sheets-sheet 2 wlTNEs WM v w ATTRNEY April 1o, 192s.-

HEATING PPARATUS Filed sept-v. 25, 1927' s sheets-sneefs xNvENToR ATTOR N EY UNITED v STATES PATE T f flues,

WILLIAM DisfrRA'rToN, or rARWELL/MICHIGAN.

y HEATINGi ArPAaA'rUs.

Appucaiigmmed september 23, 1927. seriarn. 221,541.

My present invention has reference toaheating apparatus in the nature of ahot air Afurnace aand one ofiny vobjects 1s the provision of a furnace o f a simple but thor oughly eiiicient construction vwhich insures complete combustion of the' fuel -to obtain the greatest amount of heat generated by such combustion and automatically distrib-v uting such heat and further wherein the l0 greatest amount of heat may be obtained by a minimum amount' offuel. V

Broadly my object .is the provision of a v'hot air furnace in which the -combustion takes place in three separate stages to overcome the force of cohesion, the Change'y of fuel into carbon monoxide gas and then into tion, with the understanding, however, thaty the improvement is capable of extended application and is not confined tothe exact showing of the drawings nor to the precise construction described and, Iltherefore, such changes and modifications may be made.'

therefrom as do not affect the spirit of the invention nor exceed the scope thereof as rex ressed `in the appended claims.

n the drawings: Figure'l is atop plan view of a hot air 4o furnace in accordance with ,this invention. Figure 2 is a sectional view approximately on the line 2-2 of Figure 1. f Figure 3 is a sectional view approximately on the line`3^3 of Figure 2, the heat outlet end of the furnace being shown' arranged in an opening in a floor of a building, and provided with a grating and a valve for controlling the heat passing through the grating. A

Figure 4 is a horizontal sectional view approximately on the line 4-4 of Figure In the showing ofthe drawings I have illustrated my improved hotair irnace of a one pipe type, but obviously'the lsame may be provided with heat conductor pipes for directing heat to various rooms in a buildfurnace.

In this connectionvfit may beyvell to state .that I do not wish to'be restricted to the general `form andthe details of construe.

tion and particular arrangement. of parts of the furnace disclosed by the' drawings las the same is merelyonc satisfactory einbodi@ ment of the improvement which is susceptible to such Ivariations and changes as fairly fall Within the 'scope of what I claim.

. Referring now tofthe drawings in detail,

the numeral 1, designates the casing of the this casing is of square or rectangular fOrmation. The'iire pot of the furnace is indicated by the numeral 2, and thegrate by the In the showing of the drawings numeral 3. The fire pot'is formed 'integrally with au inner shell twhose inner port1on provides a combustion chamber 5. A rectangular casting 7 establishes -a communb cation with the lire pot and-the front of the furnace yto permit of the insertion 'of fuel into the fire pot.

of the fire pot are inclined toward the grate so that the f uel will gravitate onto vsuch grate to `prevent the clogging' of the upper surface of the fuel and to insure a free pas-vv sage of airfthrough such fuel. ,The corners of the fire pot haveangle ports 9 fixed therein to 'provide the said corners of thetire pot into thebottom of the casing and the sides.

of the fire pot. and ash pit by conduits 17, respectively, and in thecasing,I below the 1`his passage is no'ramlly closed by theV usual door 8. 'The sidewalls with passages 10 that communicate with the walls 14l there are pivotally' supported angularly disposed plates-17 and 18, respectively,

.which provides valves and which valves are 4controlled byloplerating handles 19 and 20,

e valves are regulated to respectively. T

chambers direct the air into the compression 15 and into the passages 16.

The upper wall of the casting 7 is formed with an' inwardly directed baiie 21 and the lclosed top 22 of 'the combustion chamber 5 has all, except one of its corners beveled, as at 23, the corner not so beveled being connected with a smoke outlet pipe 24. lBelow this pipe there is arranged in the combustion chamber a horizontal partition 25 lthat merges into V a downwardly directed angle' extensionl 26 which -provides 'the upper and main baille' platejy The sides of thepartitions lll, atthe'uppr portions thereofand opposite the angle" `corners ofthe combustion chamber 'are'- arranged in the saine angles as f saidv corners andas indieatedbythe nuiner- I 8,127 of the drawinfgsf'j These angle `Walls "fw-communicate With-the heat outlet Iof'the furnace and such. heat outlet 'is surrounded -by'aflange 28.

pression chambers,v provided by the.4 angle Walls=27 of the-:plates '1 4 there 'is arrangedl5 vthe, improvement.- Theselvessels have their the inner water or vaporizing vessels` 2 9 of lower ends l'provided Wtlrpipes- SOthateX-Y tend-throught@ isifdesf ofthe casing-'Sand i whc'h pipeshave-their outer ends connected' each-of the pipes- B (jscontrolleda valve tainedin a proper moisteiied condition and i 'by'obser'ving theWater inthe outerjcups 31.1

the water level in thev inner ,eups may be r branchesof'thesaid vcross-shaped-'i pipe are readily'determined` Connected `with thev top pla-te`. 22lot' the combustion lharn'ber -5v there is vthe upper end ofthezhotblast pipe of the finiprovenient.A

The 4mainlortuielfi of this hotair. blast is indieatedby the numeral, but the said pipe is provided with lateral'extensions 34;. Thus the 'hotblast pipe 'is intlie nature', of a cross .and thefendsA of bothfthe vniain and 'angle 'apertured, as'at 35 The hotgblastfpipe '33 has its 'entrance coni;

' 36', .the saidvalve"-bei'ng opera-ted bya rod 37'thatlis g'uided-'tliroughone oit 4.the angle' walls -27 fand lthrough the .casing l.v

The openings. l0 also'-povidehotfblastsr andthe'flanged heat outlet 2 8 lhas arranged thereoverythe usual grating 38` that may 'be controlled by afvalve. or damper 39,'the

same, ofcourse being arranged onv the floor 40 ofa' rooin into which theheat-ron'i the furnace is to beL-'directed- '-'(see 3). With ni improvement a.eo i np1 ete combus-v tion ,of uel and the greatest-amount of heat generated may be'v utilized in heating the room. The lire box construction lwith the 'hot blast openings from the. bottom deliver a hot 'blast'under 'the 'grate 3,-" insuring af complete' eon'ibustion of the fuelin its first completed in the fire box. Hence therelis no intense heat there tao-burn lit out,A

' .Where ,the/hot air blast is over'fthe fuel.-

served gases 'are directed toward the rear rolled bya. sliding vvalvev the currentsis further vincreased by. the@ three di erent hot vblasts'bytlie cross-shaped 70` :pipe 33,1 Tlie het blasts in the combustion ehainbe'r arenear fthe conducting .Walls so as toi'itilizein radiation the greatest amount of heat. The hot blasts Will',l draw, the heatedv air' from the outside and such' vair 75 is- Isup'erheated 'in its fdovvii-'tvard "travel through thejvtriplelio't blastpipe' or 'conduetoi andthe arrangen'ient of the ,said hot' blast 'orjconductor is sueh'asto render`the, saineinost-effctive"in the' combustion ci the-80 fuel; I The-reservoir at th'e'topol the coin-' vbustion ehaniberfor thesniolre and iincop .served gasretaing-Such snioke' and gas until'4 v they.-aresuperlieated b v the-hot 'baiiie platej" bustioii for such 'smoke anduneonserved' gas. The smoke. outlet is lengtliened bythe h lf'i/ilie plateA and by the Wall or plate 2 5, thu's* v insuringa 'greater absorption? of 'the heat 90 by the upper Walls o fthe'coinbustion chanel' ber. q The convective currentsffor lthe .pur-

.pose of'c'onveying heat tothe rggom vare very effectiveforthe reason that suchcurrents are Confined to the narroif'v space between the 95 outer .wall o ffth'elire-' loox'and4 the 'inner Wall of l the coni ressionlcliarnber where it radiates hack an forth tin its ascending rand thus'suclil currents are superheated as they are earried to theleooler air in -the room; 'ltd Thesesuperheated Currents by' eloseproXif` inity to the,heat ed wallso the f uinaeeA4 have their' velocity accelerated,l thus causing-.the saine to effectively .reaehf the most distant-part ofthe-'room'. Thevelority 0f'1`05 partial. vacuum at 'the topofthe heating. zipparatus". The angle' Walls of the combustion chamber, and 't h'e angle 'ivalls' provided-'by 110 the passages for the convective-currents ofA i heatare over the :hot air blasts, thusfco'inpelling the. intake to be'fio'in beneaththec'om. vective eurrentsf. The convective eurientdsv further' accelerated-"by `av force generated 115. i the expansionandebinpressonot a'ir' or',

air and yvapor in the-compression 1 chambers and are" thus -aiitoniatically :heated and eX-'- panded byl heat which lis `usually 10st.4

`through extended radiation-l The finner lWallsv of the compression chambers-are iun-LA lfinishe d steel oriron -v vhich adinit a greater stage. The eoinbustion, however, is notl absorptioifiand; radiation off heat.' Vapor is supplied-bytheWater .in "the inner vapor oups andtliis vapor and the eonipressed air. i

in tliefy compression chambers effectively inoistensfthe heat without danger of explosion, it being; understood that the valves 32 are at all times opened so the pressure of the Vapor -ismanifes'tedat the point of least 130 added-to the convective current.

resistance, .namely at-the valve opposite the fire'potlon either side of the furnace. The cool air 'cannot rise in theA compression chamber nor can the hot air and vapor descen'd but the pressure is constant 'and 'the lforce exerted is also constant and is The entireheating apparatus is automatic with the exception of the care of the drafts and the refilling ofv the `vapor cups, it being understood-thatthe doors 8 and 12 are provided with the usual openings controlled lby the ordinary dampers.

.The heating apparatus is simple incon struction vand economical in the use of fuel, and the construction and operationthereof will, it is thought, be perfectly understood and appreciated by those skilled inl the art to Wh-ich the invention relates When th'e foregoing description has been .carefully read 1n connection With the accompanying drawings so that further detail description will not be required. f

Having described the invention, VI'clainr: 1.A A hot air furnace having anash pit therein, a firebox above the ash pit and a .combustion chamber arising from the fire box, a baille plate in the'eombustion chamber, and a second baille plate in said chamber .aboveiand'directed toward the first mentioned baille plate, said chamber having a smoke outlet above the second named baille plate,` and said fire box having angle corner;

partitions therein providing hotjair blast ducts between 'the combustion chamber and the ash pit. v

2. A hot air furnace having an ash pit therein, a fire box above the ash pit and a combustion chamber arising from the fire box, a baille plate in the 'combustion chamber, a second baille plate in said chamber' above and directed toward the first men-4 tioned balleplate, and said chamber having a smoke outlet labove the second named baille plate, said iire box having angle corner partitions therein providing hotair blast ducts between the combustion chamber and.the ash pit, and a cross-shaped pipe arranged centrally to the combustion chamber having an open end secured to the tap of the. said chamber, and having its remainingends closed and apertured.

3. lA hot air furnace having an ash pit therein, a fire box above the ash pit and a combustion chamber arising from the fire box, a baffle plate in the combustion chamber,

a second baille plate in said chamber above and directed toward the first mentioned baffle plate, and said chamber having` a smoke outlet above the second named baille plate, said fire box having angleL corner, partitions therein providing hot air blast ducts between the combustion chamber and the ash' pit, a cross-shaped ipe arranged centrally to the combustion c amber havmg an open ber.

end secured to the top of they said chamber. and having its remaining endswclosed andA apertured and a valve controlling the entrance to the cross-'shapedpipe member,

4L A hotai'r furnace having an ash pit therein, a fire box above the ash .pit and-a combustion chamber arising from lthe fire box, a baille plate in ythe combustion cham- 'the entrance to the cross-shapedpipe irrember, a, convective chamber in'the furnace opposite the combustion A.chamber and,llav'ing` a valved outlet and provi (li-ngacompression chamber between the outer Wall-of the furu naceand the said convective chamber and valves controlling the admission of outside air into the compression chamber and` for directing such air i-ntothe convection chain- 5; A hot air furnace.'I having an ashfpit therein, a fire boxabove the ash pit and conlbustion chamber arising from vthe fire box, a baille plate'in thecombustion chamber, a second baffle plate in said chamber above 4and directed tovvardfthe first mentioned baille plate, and said .chamber having a smoke outlet above the second named baille plate, said lire box having angle corner partitions therein providing hot air blast ducts between 'the combustion chamber and the ash pit, a crossshaped pipe arranged eentrally'tothe combustion chamber having an open end secured to the ltop'of the said chamber, andhaving its remaining ends closed and, apertured," a f 4valve controlling the entrance to the crossshaped pipe member, a convective chamber inthe furnace opposite the combustion chamber and havingxa valved outlet and providmg a compression chamber between the outer Wall of the furnace and .the said convective.

chamber and valves controlling the admission of outside air into the compression chamber and for directing such air into the convection chamber and a vaporizer in the compression chamber. 6: Ahot air furnace having an ash pit therein, a fire box abovethe ash pit and a combustion vchamber arising from the fire box, a `baffle plate in the combustion chamber,\a` second baille plate in said chamber above and directed toward the first mentioned baille plate, and said chamber having a smoke outlet above the second named baille plate, and said 're box having angle corner.

partitions therein providing e hot '.aii1 blast ducts between-fthecombustionfchamber and the ash pit, a.oi'ossshapedfpipe arranged' oentrally to the vcombustion.chamber having ian .Qp'enfend secured to-the top ofthe'v 4said cl'1ambei,- and' having 'fits .remainingends folosed uid-apentured', and "a 'valve ontolling the Ientianoelt'o t1ie'c1fo-ss4shaped-pipe 1nem; i bei', aeonvecti've chamber 1in thefurnace op'-, -posite the .coinloustion chamber and having a .valve'd outletandproviding fa .ornbljes'sion .ehainbl'between the-outer wall of 'the fur;

`nace 'and' the said convective `Achamber and valves.Controlli-'ng thefadmission of outsidel heatedjairinto theloompression chamber. and

" for 4directing such air into 'the convective, i chamber, and 'a'vva'porizer inthe compression chan'iberfsaid :vapoi'izeif includingfinnei" and onteii ibowls and. j a valved pipe 'c onnectingA vsaid bowls.

' 71A :hot'aii furnace inolud'ing .zi-*casing fhi'afving air 'ducts entering thebottoln thereof, valves-1' eontroll-ingf the yadmission .of .air l through theduets;`a11 .ashj pit inthe casingi liaviI igwaifine'l box tli'eieovei" andi acoinbsf "tion iehainber extending througlnthe 'tir-box,

partitions in .the .fire 'boX f establishing `lio't' ffblast dLiOtS' between *the co1nbustion"- ohafnoberv and the..-as hl1p it,j a lovvfevn.gb'avftle plate`in the". *Combustion cli-amber," an AupperA baffle plate" in" the combustion `'ollaflnbel' c'lire'otedj` toward. thefloxvei: baille plate., a Apartit ion connecting; the'l'ast mentioned baffle' plate-.1 with sides" andon'eof the ends ofthe. ombustion chainthen; ,said. ic.on'1bustion "chain-ber," having-' -a smoke -"outlet .above 4 said partition plate, 'a hot blast pipe ofv c ross-fomation having' an open endionnecte'd to the top-ofthe combustion chamber andliaving its remaining ends-rounded :and ape'rtured, a valve conf :trolling the open end of the pipe,A an "innel' .convection' chamber.- in the .oasmg'surround ingthefooinbustion -eh'amb'er 'and establish inga'n onten eompressio'nohalnbei'ya valve/doutlet. fon the ooni'feetio-n chamber, and angul'a1lyarranged valvei plates below lthe vouterl wall of fthe@ `convection 'lcharibei swingable into the- Compression chamber andflikowise swingable intgithe' Convection' chamber.' l

8a-'A hot air-"furnace Wl-n`c`hi Compmses a casing',liavjng aj .tire box' thereimya-eombus-- tion leliainber extending "from the ie.. box andi;- having ;a valve controlled .Isnioke outlet,

an. innei" convection Achamber in' theA casing. fslfirounding `thev combustion chamber.' and establishing va ompression chamber" between fthe. casing and 'said `oonvectioni lch'a'nibelya' valv'edg-outl'et- .foi1 .the. "convection chambery .angina-Fly Aarranged valve plates. at thelow. e1- Wall ofthe 'convection' jeha'inber swingable l 'nto'this"Chambon and'- into the oontpression i Chamberand valv'e controlled means for sup-1- plying outside air and diifeo-tingthe saine n 'throughthe -compiessionf'chamber .to add to.

.thepropulsive .fof ce ottheasc'endjng con` '.veetive {an-5 "currents through the .'eonvectlon e'hainber.:and'ilkewisesupplying `ooolgai'i1 vto theeonipessionfehamber.j In .testimony lwhereof a'Hix my signature "-WILLIAM `STRATTO'N 

